Why that's no kit... It's a scooter motor, with a home made friction wheel, and two lawn tractor batteries go into the home made trailer. Top speed on the flat is about 15 miles per hour. Uphill I have to pedal so it is for exercise not running errands. I have a pretty good set of hills in the neighborhood so I can ride about three miles and get a pretty good workout. I couldn't make up those hills without the assist. I don't work up much of a sweat but I do get a little exercise with it.